From: Patrick Dung <patrick_dkt@yahoo.com.hk>
To: Steven Hartland <killing@multiplay.co.uk>
To: Ivailo.TANUSHEFF@raiffeisen.bg <Ivailo.TANUSHEFF@raiffeisen.bg>
To: Michael Schmiedgen <schmiedgen@gmx.net>
Cc: owner-freebsd-fs@freebsd.org <owner-freebsd-fs@freebsd.org>
Cc: freebsd-fs@freebsd.org <freebsd-fs@freebsd.org>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Cc: freebsd-jail@freebsd.org <freebsd-jail@freebsd.org>
Subject: Re: ZFS-FreeBSD + postgresql performance
Date: Sat, 26 Oct 2013 13:23:33 +0800 (SGT)
Message-ID: <1382765013.22777.YahooMailNeo@web193502.mail.sg3.yahoo.com> (raw)
In-Reply-To: <DF66E5265C9A470A8EFABA893D5BE384@multiplay.co.uk>
References: <20131023162545.GA19794@pcjas.obspm.fr>
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On Saturday, October 26, 2013 1:04 AM, Steven Hartland <killing@multiplay.co.uk> wrote:
----- Original Message -----
From: "Patrick Dung" <patrick_dkt@yahoo.com.hk>
Sent: Friday, October 25, 2013 4:53 PM
Subject: Re: [ADMIN] ZFS-FreeBSD + postgresql performance
>> I would also recommend to use 4K sector size using
>
> gnop and zpool export/import.
This will have no effect, the ashift for a pool is set at creation.
Regards
Steve
---------------------
To be specific, I think the steps should be gnop create, create zfs pool, export zfs, remove gnop and reimport zfs.
This link have the deatils and steps:
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To: pgsql-admin@postgresql.org
Cc: patrick_dkt@yahoo.com.hk, killing@multiplay.co.uk, Ivailo.TANUSHEFF@raiffeisen.bg, schmiedgen@gmx.net, owner-freebsd-fs@freebsd.org, freebsd-fs@freebsd.org, freebsd-jail@freebsd.org
Subject: Re: ZFS-FreeBSD + postgresql performance
In-Reply-To: <1382765013.22777.YahooMailNeo@web193502.mail.sg3.yahoo.com>
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